# NTSB investigations, AZ: Unknown or undetermined

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB WPR26FA301](https://openairdocs.org/ntsb/WPR26FA301.md): New Glasair Sportsman 2 Plus 2 · Pine, AZ · Accident · 2 fatal · Class 3 · Field · Preliminary report · Aug 11, 2026 · N202AZ · Destroyed
  > On August 10, 2026, at about 1835 mountain daylight time, an experimental amateur built Glasair Sportsman 2 Plus 2 airplane, N202AZ, was destroyed when it was involved in an accident near Pine, Arizona. The pilot and passenger were fatally injured. The…
- [NTSB WPR26FA098](https://openairdocs.org/ntsb/WPR26FA098.md): Bell 407 · Flagstaff, AZ · Accident · 2 fatal · Class 3 · Field · Preliminary report · Feb 5, 2026 · N56AZ · Destroyed
  > On February 4, 2026, at 2216 mountain standard time, a Bell 407 helicopter, N56AZ, was substantially damaged when it was involved in an accident near Flagstaff, Arizona. The pilot and tactical flight officer (TFO) were fatally injured. The helicopter was…
- [NTSB CEN25FA212](https://openairdocs.org/ntsb/CEN25FA212.md): Cessna A150L · Three Points, AZ · Accident · 2 fatal · Class 3 · Field · Preliminary report · Jun 18, 2025 · N6436F · Substantial damage
  > On June 18, 2025, about 0922 mountain standard time, a Cessna A150L airplane, N6436F, was substantially damaged when it was involved in an accident near Three Points, Arizona. The student pilot and flight instructor were fatally injured. The airplane was…
- [NTSB WPR25FA031](https://openairdocs.org/ntsb/WPR25FA031.md): Honda HA420 · Mesa, AZ · Accident · 5 fatal · Class 3 · Field · Preliminary report · Nov 5, 2024 · N57HP · Destroyed
  > On November 5, 2024, at 1639 mountain daylight time, a Honda HA-420, N57HP, was destroyed when it was involved in an accident near Mesa, AZ. The pilot and three passengers were fatally injured, one passenger was seriously injured, and the single occupant of…
- [NTSB WPR24LA042](https://openairdocs.org/ntsb/WPR24LA042.md): Cessna 182G · Casa Grande, AZ · Accident · Minor injuries · Class 3 · Limited · Final report · Nov 26, 2023 · N2428R · Substantial damage
  > The loss of engine power during landing for undetermined reasons.
- [NTSB WPR24LA029](https://openairdocs.org/ntsb/WPR24LA029.md): Aerostar International RX 8 · Page, AZ · Accident · Serious injuries · Class 3 · Limited · Final report · Nov 4, 2023 · N50466 · No damage
  > A hard landing after both burner pilot lights extinguished during the landing approach for undetermined reasons. Contributing to the accident was the pilot's inability to relight the burner pilot lights.
- [NTSB WPR23LA162](https://openairdocs.org/ntsb/WPR23LA162.md): Cessna R182 · Grand Canyon, AZ · Accident · No injuries · Class 3 · Limited · Final report · Apr 19, 2023 · N4166C · Substantial damage
  > The airplane’s loss of engine power for undetermined reasons and the pilot’s exceedance of the airplane’s critical angle of attack and subsequent failure to maintain adequate airspeed, which resulted in an aerodynamic stall.
- [NTSB WPR23LA107](https://openairdocs.org/ntsb/WPR23LA107.md): Bell OH-58A · Yuma, AZ · Accident · Minor injuries · Class 3 · Limited · Final report · Feb 7, 2023 · N36FA · Substantial damage
  > A total loss of engine power for reasons that could not be determined.
- [NTSB WPR23LA060](https://openairdocs.org/ntsb/WPR23LA060.md): Cessna 177 · Willow Spring, AZ · Accident · Minor injuries · Class 3 · Limited · Final report · Nov 27, 2022 · N2994X · Substantial damage
  > The airplane’s loss of engine power for undetermined reasons.
- [NTSB WPR23LA013](https://openairdocs.org/ntsb/WPR23LA013.md): Piper PA-30 · Tucson, AZ · Accident · No injuries · Class 3 · Limited · Final report · Oct 15, 2022 · N7746Y · Substantial damage
  > The pilot’s loss of control during landing for reasons that could not be determined based on the available evidence.
- [NTSB WPR22FA348](https://openairdocs.org/ntsb/WPR22FA348.md): Trom Wayne Vans RV6A · Aztec, AZ · Accident · 2 fatal · Class 3 · Field · Final report · Sep 16, 2022 · N646RV · Destroyed
  > The total loss of engine power for reasons that could not be determined based on available evidence. Contributing to the accident was the pilot’s decision to turn away from a suitable emergency landing surface, his failure to maintain adequate airspeed as the…
- [NTSB WPR22FA215](https://openairdocs.org/ntsb/WPR22FA215.md): Beech E35 · Buckeye, AZ · Accident · 2 fatal · Class 3 · Field · Final report · Jun 18, 2022 · N13AR · Destroyed
  > The pilots’ failure to climb and complete a normal traffic pattern after making a low approach and their failure to extend the flaps for reasons that could not be determined, and the flight instructor’s failure to ensure adequate airspeed and bank control…
- [NTSB WPR20CA298](https://openairdocs.org/ntsb/WPR20CA298.md): Cessna 208 · Whitmore, AZ · Accident · No injuries · Class 4 · Data collection · Final report · Sep 7, 2020 · N186GC · Substantial damage
  > A loss of directional control during landing due to a flat main landing gear tire, which resulted in a lateral runway excursion and impact with terrain.
- [NTSB WPR18FA228](https://openairdocs.org/ntsb/WPR18FA228.md): Pietenpol Aircamper · Camp Verde, AZ · Accident · 2 fatal · Class 3 · Field · Final report · Aug 18, 2018 · N88HK · Substantial damage
  > Loss of control for reasons that could not be determined because postaccident examination of the airframe and engine revealed no mechanical anomalies that would have precluded normal operation.
- [NTSB WPR18LA152](https://openairdocs.org/ntsb/WPR18LA152.md): Mcdonnell Douglas Heli 369FF · Wikieup, AZ · Accident · No injuries · Class 3 · Limited · Final report · May 29, 2018 · N975BW · Substantial damage
  > A vibration of the helicopter for reasons that could not be determined based on the available information, which resulted in a forced landing and the main rotor contacting the tailboom.
- [NTSB WPR16FA158](https://openairdocs.org/ntsb/WPR16FA158.md): Piper PA 34-200T · Flagstaff, AZ · Accident · 1 fatal · Field investigation · Final report · Aug 3, 2016 · N82806 · Destroyed
  > A departure flight path that consisted of several unexplained turns during the initial climbout, and terminated in a high-speed descent and ground impact. The reason(s) for the turns and descent could not be determined due to lack of definitive evidence.
- [NTSB GAA15CA187](https://openairdocs.org/ntsb/GAA15CA187.md): Hier James A Long EZ · Show Low, AZ · Accident · No injuries · Data collection · Final report · Jun 26, 2015 · N793H · Substantial damage
  > The right main landing gear leg fracture, which resulted in the landing gear wheel separation and a runway excursion.
- [NTSB WPR15LA048](https://openairdocs.org/ntsb/WPR15LA048.md): Air Tractor AT 502B · Somerton, AZ · Accident · 1 fatal · Limited investigation · Final report · Nov 30, 2014 · N946TR · Destroyed
  > A loss of airplane control for reasons that could not be determined based on available evidence.
- [NTSB WPR13CA348](https://openairdocs.org/ntsb/WPR13CA348.md): Cessna 172S · Phoenix, AZ · Accident · No injuries · Data collection · Final report · Jul 26, 2013 · N635ND · Substantial damage
  > A substantially damaged firewall that occurred during an unknown phase of flight for reasons that could not be determined.

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."eventStateOrRegion" = 'AZ' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '000' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent"))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/000/sequence?state=AZ

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